Originally Posted by
Silvercivic27
You will find no reliable data on this. All else being equal, the new foil and new addict, for that matter, are better frames both in aero and in stiffness. How much better and whether it's worth the money to you are different issues. I'm keeping my addict until something bad happens to it. Then I'm getting a new addict.
This. I think any individual's comparison on back to back rides would be completely opinion based on numerous things like how the bike fits them, their flexibility, their riding style, etc. I guess you could run the calculators to see the watt savings based on weights.